Current And Resistance MCQ

Test your knowledge with important Current And Resistance MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Current And Resistance MCQs at Bissoy

• Current flows in a circuit when
  ক

  A switch is opened

  খ

  A switch is closed

  গ

  The switch is either open or closed

  ঘ

  There is no voltage
• Eighttenths coulomb passes a point in 4 s. The current in amperes is
  ক

  1.6 A

  খ

  16 A

  গ

  2 A

  ঘ

  0.2 A
• The unit of electrical charge is the
  ক

  Coulomb

  খ

  Joule

  গ

  Volt

  ঘ

  Watt
• The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms.
  ক

  True

  খ

  False
• Electrons in the outer orbit are called
  ক

  Nuclei

  খ

  Valences

  গ

  Waves

  ঘ

  Shells
• A voltmeter is connected across the current path.
  ক

  True

  খ

  False
• An ammeter is connected across the current path.
  ক

  True

  খ

  False
• When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
  ক

  12.5 C

  খ

  1.25 C

  গ

  0.5 C

  ঘ

  5 C
• A wiper is the sliding contact in a
  ক

  Switch

  খ

  Photoconductive cell

  গ

  Thermistor

  ঘ

  Potentiometer
• A twoterminal variable resistor is known as a
  ক

  Potentiometer

  খ

  Thermistor

  গ

  Rheostat

  ঘ

  Wiper
• A red, red, orange, gold resistor has a nominal value of
  ক

  22,000 Ω

  খ

  2,200 Ω

  গ

  22 Ω

  ঘ

  2.2 Ω
• An ohmmeter is an instrument for measuring
  ক

  Current

  খ

  Voltage

  গ

  Resistance

  ঘ

  Wattage
• The atomic number is the number of neutrons in the nucleus.
  ক

  True

  খ

  False
• A free electron is a valence electron that has broken away from its parent atom.
  ক

  True

  খ

  False
• A thermistor is a type of
  ক

  Switch

  খ

  Resistor

  গ

  Battery

  ঘ

  Power supply
• Which of the following is not a type of energy source?
  ক

  Generator

  খ

  Rheostat

  গ

  Solar cell

  ঘ

  Battery
• The maximum resistance value for a brown, red, yellow, gold resistor is
  ক

  126,000 Ω

  খ

  126,600 Ω

  গ

  114,000 Ω

  ঘ

  132,000 Ω
• A neutral atom is one with an equal number of protons and electrons.
  ক

  True

  খ

  False
• An open circuit is one that has a complete current path.
  ক

  True

  খ

  False
• An ammeter is an electrical instrument used to measure
  ক

  Current

  খ

  Voltage

  গ

  Resistance

  ঘ

  None of the above
• The current in a given circuit is not to exceed 24 A. Which value of fuse is best?
  ক

  A fuse is not necessary

  খ

  10 A

  গ

  24 A

  ঘ

  20 A
• A potentiometer is a twoterminal variable resistor.
  ক

  True

  খ

  False
• A material that does not allow current under normal conditions is a/an
  ক

  Insulator

  খ

  Conductor

  গ

  Semiconductor

  ঘ

  Valence
• Free electrons make current possible.
  ক

  True

  খ

  False
• The colored bands for a 4,700 ohm resistor with a ten percent tolerance are
  ক

  Yellow, violet, red, gold

  খ

  Yellow, violet, orange, gold

  গ

  Yellow, violet, red, silver

  ঘ

  Orange, violet, red, silver
• Materials with lots of free electrons are called
  ক

  Conductors

  খ

  Insulators

  গ

  Semiconductors

  ঘ

  Filters
• When placed close together, two positively charged materials will
  ক

  Attract

  খ

  Become neutral

  গ

  Become negative

  ঘ

  Repel
• The minimum resistance value for a blue, gray, red, silver resistor is
  ক

  612 Ω

  খ

  6,120 Ω

  গ

  6,800 Ω

  ঘ

  6,460 Ω
• A multimeter measures
  ক

  Current

  খ

  Voltage

  গ

  Resistance

  ঘ

  Current, voltage, and resistance
• Resistance limits the current.
  ক

  True

  খ

  False